Set computers to hibernate when they aren’t in use; ask the cable company about replacing the current set-top box with one that meets Energy Star’s 3.0 specifications. Front-loading washers use less energy and water than most top-loaders. Dishwashers with soil sensors adjust hot water depending on how dirty the dishes are, saving energy and water. One smart thing you can do is buy a programmable thermostat, which can lower annual energy costs by as much as 10 percent.
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